WO2014067295A1 - 幼儿推车 - Google Patents

幼儿推车 Download PDF

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Publication number
WO2014067295A1
WO2014067295A1 PCT/CN2013/079337 CN2013079337W WO2014067295A1 WO 2014067295 A1 WO2014067295 A1 WO 2014067295A1 CN 2013079337 W CN2013079337 W CN 2013079337W WO 2014067295 A1 WO2014067295 A1 WO 2014067295A1
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WO
WIPO (PCT)
Prior art keywords
push rod
seat
frame
rod
bracket
Prior art date
Application number
PCT/CN2013/079337
Other languages
English (en)
French (fr)
Inventor
王俊马
Original Assignee
好孩子儿童用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 好孩子儿童用品有限公司 filed Critical 好孩子儿童用品有限公司
Publication of WO2014067295A1 publication Critical patent/WO2014067295A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/068—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by sliding a bushing along a rod, e.g. like folding means of an umbrella
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/20—Handle bars; Handles
    • B62B9/203—Handle bars; Handles movable from front end to rear end position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise

Definitions

  • the invention relates to a baby stroller.
  • the child stroller of the prior art comprises a foldable frame, a front wheel assembly disposed at the front of the bottom of the frame, a rear wheel assembly disposed at the rear of the bottom of the frame, and a lock for locking the frame in the deployed position.
  • the mechanism, the seat set on the frame There are many types of existing frames, and the number of the bars of the frame is different, and the connection relationship and the connection position between the bars are different, so that the use methods and functions are different.
  • the technical problem to be solved by the present invention is to provide a reversible child stroller.
  • the present invention provides a baby stroller including a foldable frame, a seat disposed on the frame, a locking mechanism for locking the frame when deployed, and a front portion disposed at the bottom of the frame a wheel assembly and a rear wheel assembly, the frame including a front bracket of the lower front wheel assembly, a front portion coupled to the front bracket, and a rear seat rear seat assembly seat rod, a push rod, and a lower portion rotatably coupled to the seat rod Bracket, slide.
  • the push rod includes a lower push rod that is rotatably coupled to an upper portion of the front bracket or a front portion of the seat post, and an upper push rod that is slidably coupled to the lower push rod.
  • the upper push rod and the push down The rods are relatively locked, and the upper push rod can slide relative to the lower push rod during folding or opening of the frame.
  • the sliding member is slidably disposed on one of the upper push rod and the rear bracket, and the other of the upper push rod and the rear bracket is rotatably coupled to the sliding member.
  • the seat is placed above the seat pole.
  • the push rod has two working positions. In the first working position, the push rod is inclined from the bottom to the top, and the upper end of the push rod is at the upper rear of the seat. In the second working position, the push rod is from the bottom. While tilting up and forward, the upper end of the push rod is at the front upper side of the seat.
  • the front and back are defined according to the general habits of consumers.
  • the upper push rod and the lower push rod slide relative to each other, so that the entire push rod is contracted to maintain the balance of the folded frame, so that the front and rear wheels can support the folded surface after the frame is folded.
  • the frame stands.
  • the front bracket, the seat rod, the push rod, the rear bracket, and the sliding member respectively have a pair, a pair of front brackets, a pair of seat poles, a pair of push rods, a pair of rear brackets, and a pair of sliding members respectively On opposite sides.
  • the push rod, the front bracket, the seat rod, the sliding member and the rear bracket of each side are connected to form a main body of one side skeleton, and the side frames of the two sides are connected to each other to be laterally folded so that the side frames of the two sides are relatively close together Component.
  • the lateral folding of the cross member allows the frame to be gathered in the lateral direction.
  • the cross-sections herein and elsewhere are defined in accordance with the habits of those skilled in the art, and the term "lateral" refers to the direction across the left and right sides of the frame.
  • the cross bracing assembly includes a front bracing frame
  • the front bracing includes two front braces that intersect and are rotationally coupled at the intersection, and the upper ends of the two front braces respectively rotate with the seat bars on both sides
  • the lower ends of the two front stays are respectively rotatably connected to the front brackets on both sides, and the upper ends of the two front stays are connected to the seat rods in front of the position where the seat rods are connected to the front brackets.
  • the cross brace assembly includes a bottom brace disposed between the seat bars on the sides.
  • the bottom bracket may include a cross bracket formed by two rods that intersect and are hinged at the intersection, and two links, each of which has one end and two adjacent ends of the cross bracket respectively Rotating connection, the other ends of the two links are respectively rotatably connected to the seat bars on both sides, and the other two ends of the cross braces are respectively rotatably connected with the seat bars on both sides.
  • the cross brace assembly includes a rear brace and the rear brace is disposed between the rear brace on both sides.
  • the rear bracket preferably includes:
  • first crossbar and a second crossbar respectively have inner ends rotatably connected to the upper end of the vertical rod, and further have outer ends rotatably connected to the rear brackets on both sides;
  • the slider is slidably disposed on the vertical rod;
  • a third crossbar and a fourth crossbar respectively have inner ends rotatably connected to the lower end of the vertical rod, and further have outer ends rotatably connected to the rear brackets on both sides;
  • first slanting rod the two ends of the first slanting rod are respectively rotatably connected with the slider and the third crossbar;
  • the second slanting rod has two ends of the second slanting rod rotatably connected to the slider and the fourth crossbar, respectively.
  • the axes of rotation of the wheels in the front wheel assembly and the rear wheel assembly are substantially in the same plane, and the projection of the position of the slider in rotational connection with the push rod or the rear bracket is located on the front and rear wheels. between.
  • the locking mechanism includes a first lock mechanism for relatively locking the lower push rod and the front bracket.
  • the locking mechanism includes a second lock mechanism for relatively locking the push rod and/or the rear bracket and the slider.
  • the locking mechanism includes a third lock mechanism for locking the upper push rod relative to the lower push rod.
  • the first lock mechanism, the second lock mechanism, and the third lock mechanism mentioned above may coexist in three or only one or several of them.
  • the present invention has the following advantages compared with the prior art: the present invention provides a technical solution of a new technical concept, the front bracket, the push rod, the seat rod and the rear bracket constitute a link mechanism, and The rotation of the rod, the rear bracket and the sliding of the sliding member enable the frame to be adjusted to two working positions, when the frame is in the forward state, that is, in the first working position, the cart person is behind the seat, and the child on the seat Back to the cart, when the frame is converted to the reverse state, that is, the second working position, the cart person is in front of the seat and can face the child.
  • the locking mechanism is unlocked, the push rod is brought closer to the front bracket, and the front bracket is brought closer to the rear bracket. After the frame is folded, the front wheel assembly and the rear wheel assembly are simultaneously landed, and the folded frame can stand on its own.
  • Figure 1 is a front view of the frame in a forward state (Embodiment 1);
  • Figure 2 is a front view of the frame in a reverse state (Embodiment 1);
  • Figure 3 is a front view of the frame in a folded state (Embodiment 1);
  • Figure 4 is a perspective view of the frame in a forward state (Embodiment 1);
  • Figure 5 is a perspective view of the frame in a reverse state (Embodiment 1);
  • Figure 6 is a perspective view of the frame in a folded state (Embodiment 1);
  • Figure 7 is a front view of the frame in a reverse state (Embodiment 2);
  • Figure 8 is a perspective view of the frame in a reverse state (Embodiment 2);
  • Figure 9 is a perspective view of the frame in a reverse state (Embodiment 3);
  • Figure 10 is a perspective view of the frame in a forward state (Embodiment 3);
  • a baby stroller as shown in FIGS. 1 to 6 includes a frame 1 having a deployed position and a folded position which can be folded in the front, rear, up and down, and left and right directions, a seat provided on the frame 1, and used for transporting the vehicle.
  • Two rear wheel assemblies 62 Two rear wheel assemblies 62.
  • the frame 1 includes a first front bracket 11, a second front bracket 21, a first seat pole 12, a second seat pole 22, a first push rod 13, a second push rod 23, a first rear bracket 14, and a second rear bracket. twenty four.
  • the first front wheel assembly 51 is disposed at a lower portion of the first front bracket 11.
  • the first seat post 12 is rotatably coupled to the first front bracket 11 about the first shaft 31, and the first rear wheel assembly 52 is disposed at a lower portion of the first seat post 12.
  • the first push rod 13 is provided with a first sliding member 18 that slides along its longitudinal direction, and an upper portion of the first rear bracket 14 is rotatably coupled to the first sliding member 18 about the fifth shaft 33.
  • the lower portion of the first push rod 13 is rotatably coupled to the upper portion of the first front bracket 11 about the third shaft 32.
  • the lower portion of the first rear bracket 14 is rotatably coupled to the first seat shaft 12 about the seventh shaft 34.
  • the second front wheel assembly 61 is disposed at a lower portion of the second front bracket 21.
  • the second seat post 22 is rotatably coupled to the second front bracket 21 about the second shaft 41, and the second rear wheel assembly 62 is disposed at a lower portion of the second seat post 22.
  • the second push rod 23 is provided with a second sliding member 28 slidable along the longitudinal direction thereof, and the upper portion of the second rear bracket 24 is rotatably coupled to the second sliding member 28 about the sixth shaft 43.
  • the lower portion of the second push rod 23 is rotatably coupled to the upper portion of the second front bracket 21 about the fourth shaft 42.
  • the lower portion of the second rear bracket 24 is rotatably coupled to the second seat shaft 22 about the eighth shaft 44.
  • the first front bracket 11, the first seat rod 12, the first push rod 13, and the first rear bracket 14 constitute a first side frame of the side of the frame 1
  • the push rod 23 and the second rear bracket 24 constitute a second side frame of the other side of the frame 1, and in the illustrated example, the first side frame is symmetrical with the second side frame.
  • the first side frame and the second side frame are connected by a cross brace assembly that can be folded laterally.
  • the frame 1 has two working positions of forward and reverse in the deployed position.
  • the first push rod 13 When the frame 1 is in the forward working position, the first push rod 13 is inclined from the bottom to the top, and the second push rod 23 is from the bottom. Tilting upward and backward, when the frame 1 is in the reverse working position, the first push rod 13 is inclined from the bottom to the top, and the second push rod 23 is inclined from the bottom to the top.
  • the structural configuration of the second side frame is the same as that of the first side frame.
  • the push rods 13 and 23 are rotated about the third shaft 32 and the fourth shaft 42, respectively, and the sliders 18 and 28 are slid on the push rod,
  • the upper portions of the rear brackets 14 and 24 are rotated about the fifth shaft 33 and the sixth shaft 43 respectively around the seventh shaft 34 and the eighth circumference 44, respectively.
  • the axis around which the rotation of each component surrounds has a third axis 32, a fourth axis 42, a fifth axis 33, a sixth axis 43, a seventh axis 34, and an eighth axis 44, and therefore, these axes
  • the axis of the shaft is preferably parallel.
  • the relative rotation between the components of the push rod, the front bracket, the rear bracket, and the sliding member can also be rotated around the axis, and can be rotated by other means such as rotating joints.
  • the line is also parallel to the axis of the third shaft 32, the fourth shaft 42, the fifth shaft 33, the sixth shaft 43, the seventh shaft 34, and the eighth shaft 44.
  • the first push rod 13 includes a first lower push rod 16 rotatably coupled to the upper portion of the first front bracket 11 about the third shaft 32, and a first upper push rod 17 slidably coupled to the first lower push rod 16, first
  • the slider 18 is slidably disposed on the first upper push rod 17;
  • the second push rod 23 includes a second lower push rod 26 that is rotatably coupled to the fourth shaft 42 at the lower portion of the second front bracket 21, and a second pushdown
  • the rod 26 is slidably coupled to the second upper push rod 27, and the second slider 28 is slidably disposed on the second upper push rod 27.
  • the frame 1 is in the deployed position, and the heights of the first push rod 13 and the second push rod 23 are relatively high, which is convenient for the cart person to hold.
  • the overall height is lowered, the volume is small, and the folding is made at the same time.
  • the rear frame is easy to stand on its own. As shown in Fig. 6, the folded frame can be supported on the plane by the front and rear wheels.
  • the locking mechanism may include a first lock mechanism disposed between the lower portion of the first lower push rod 16 and the upper portion of the first front bracket 11 and/or between the lower portion of the second lower push rod 16 and the second front bracket 21, A second lock mechanism disposed between the first upper push rod 17 and the first slide member 18 and/or the second upper push rod 27 and the second slide member 28 may be included.
  • the locking mechanism may also include a third lock mechanism disposed between the first upper push rod 17 and the first lower push rod 16 and/or between the second upper push rod 27 and the second lower push rod 26.
  • the first lock mechanism is used for rotation prevention, and is not a design point of the present invention, as long as the structure capable of locking between the two rotating members can be applied, and details are not described herein.
  • the second lock mechanism and the third lock mechanism are all sliding lock mechanisms, and are not the design points of the present invention. As long as the structure for locking between the two sliding members can be applied, the locking mechanism is known to those skilled in the art. There are many, and I won't go into details here.
  • the cross bracing assembly includes a front bracket 7 disposed between the first front bracket 11, the second front bracket 21, the first seat pole 12 and the second seat pole 22, and the front bracket 7 is by the first front
  • the struts are intersected with the second front struts and pivotally connected at the intersection, and the lower portion of the first front struts and the first front bracket 11 are rotatable in two intersecting plane directions by the first rotating joint
  • the upper portion of the first front strut and the second seat rod 22 are rotatably disposed in two intersecting plane directions by the third rotating joint, and the third rotating joint is located in front of the second shaft 41;
  • the lower portion of the strut and the second front bracket 21 are rotatably disposed in two intersecting plane directions by the second rotating joint, and the upper portion of the second front strut and the first seat rod 12 can pass through the fourth rotating joint in two
  • the intersecting planes are rotationally disposed, and the fourth rotating joint is located forward of the first shaft 31.
  • the cross brace assembly includes a bottom brace 8 disposed between the first seat post 12 and the second seat bar 22.
  • the bottom bracket 8 includes a first bottom rod pivotally connected to the first seat rod 12 at one end, a second bottom rod pivotally connected to the second seat rod 22 at one end, and one end portion and the first seat rod 12 a third bottom rod pivotally connected, a fourth bottom rod pivotally connected to the second seat rod 22 at one end, the third bottom rod intersecting with the fourth bottom rod and pivotally connected at the intersection, the third bottom rod
  • the other end is pivotally coupled to the other end of the second shaft, and the other end of the fourth shaft is pivotally coupled to the other end of the first shaft.
  • the cross bracing assembly includes a rear bracket 9 disposed between the first rear bracket 14 and the second rear bracket 24, and the rear bracket 9 includes:
  • first crossbar one end of the first crossbar is pivotally connected to the upper end of the vertical bar, and the other end of the first crossbar is pivotally connected to the first rear bracket 14;
  • one end of the second crossbar is pivotally connected to the upper end of the vertical rod, and the other end of the second crossbar is pivotally connected to the second rear bracket 24;
  • the slider is slidably disposed on the vertical rod;
  • a third crossbar one end of the third crossbar is pivotally connected to the lower end of the vertical rod, and the other end of the third crossbar is pivotally connected to the first rear bracket 14;
  • a fourth crossbar one end of the fourth crossbar is pivotally connected to the lower end of the vertical bar, and the other end of the fourth crossbar is pivotally connected to the second rear bracket 24;
  • first slanting rod one end of the first slanting rod is pivotally connected to the slider, and the other end of the first slanting rod is pivotally connected to the third crossbar;
  • a second slanting rod one end of the second slanting rod is pivotally connected to the slider, and the other end of the second slanting rod is pivotally connected to the fourth crossbar.
  • the difference between the second embodiment and the first embodiment is that the structure of the first push rod 13 and the second push rod 23 are different.
  • the first push rod 13 and the second The push rods 23 are respectively a single rod.
  • the frame 1 is in the deployed position, and the heights of the uppermost portions of the first push rod 13 and the second push rod 23 are lower; In the folded position, the folded volume is larger.
  • the difference between the third embodiment and the first embodiment is that the structure of the cross bracing assembly is different.
  • the cross bracing assembly includes the front bracing frame 7, the bottom bracing frame 8, and the rear bracing.
  • the structure of the front brace 7 is the same as that of the first embodiment, and the bottom brace
  • the structure of 8 is the structure of the rear bracket 9 in the first embodiment.
  • the frame of the embodiment is substantially similar to the previous embodiment.
  • the difference between the fourth embodiment and the first, second and third embodiments is that the first, second and third embodiments are in the folding process.
  • the direction is a frame that can also be folded in the horizontal direction
  • the fourth embodiment is a frame that cannot be folded in the lateral direction.
  • the frame includes:
  • a front bracket 110 having an H-shaped, open-up U-shaped or T-shaped (not shown), the front wheel assembly is disposed at a lower portion of the front bracket 110, and may be a single set of front wheel assemblies or a first front wheel
  • the assembly 51 and the second front wheel assembly 61 are respectively disposed on the left and right sides of the lower portion of the front bracket 110;
  • the first seat post 12 and the second seat bar 22, the upper portion of the seat bar 12 is rotatably coupled to the upper portion of the first front bracket about the first shaft 31, and the upper portion of the second seat post 22 and the upper portion of the first front bracket are wound around the second axis
  • the first rear wheel assembly 52 and the second rear wheel assembly 62 are respectively disposed on the lower portions of the first seat rod 12 and the second seat rod 22;
  • the first rear bracket 14 the upper portion of the first rear bracket 14 is rotatably coupled to the first sliding member 18 about the fifth shaft 33, and the lower portion of the first rear bracket 14 is rotatably coupled to the first seat shaft 12 about the seventh shaft 34;
  • the second rear bracket 24, the upper portion of the second rear bracket 24 is rotatably coupled to the second sliding member 28 about the sixth shaft 43, and the lower portion of the second rear bracket 24 is rotatably coupled to the second seat shaft 22 about the eighth axis.
  • the push rod may be a first lower push rod 16 and a second lower push rod 26 including a lower portion and a lower portion of the front bracket 110 about the third shaft 32, and the first lower push rod 16
  • the second lower push rod 26 is respectively slidably connected to the upper push rod 17, and the first sliding member 18 and the second sliding member 28 are slidably disposed on the upper push rod 17.
  • the locking mechanism includes a third lock mechanism disposed between the upper push rod 17 and the first lower push rod 16 and/or the second lower push rod 26.
  • the locking mechanism further includes a first lock mechanism disposed between the lower portion of the push rod and the upper portion of the front bracket 110, and a second lock mechanism disposed between the push rod and the first slider 18 and/or the second slider 28.
  • the push rod can also be single.
  • the first seat post 12 and the second seat bar 22 may also be of a unitary construction, the entire shape being H-shaped.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

一种幼儿推车，包括可折叠的车架（1）、设置于车架（1）上的座位、用于将车架（1）在展开时锁定的锁定机构、设置于车架（1）底部的前轮组件（51、61）和后轮组件（52、62），车架（1）包括前支架（11、21）、前部与前支架（11、21）相连接的座位杆（12、22）、下部与前支架（11、21）的上部或座位杆（12、22）的前部可转动地连接的推杆（13、23）、下部与座位杆（12、22）可转动地连接的后支架（14、24）、用于连接推杆（13、23）的上部与后支架（14、24）的上部的滑动件（18、28）。滑动件（18、28）可滑动地设置于推杆（13、23）与后支架（14、24）其中之一上，推杆（13、23）与后支架（14、24）中的另外一个与该滑动件（18、28）可转动地连接。座位安置于座位杆（12、22）的上方。车架（1）展开时推杆（13、23）具有两个工作位置，在第一工作位置下，推杆（13、23）自下而上向后倾斜，推杆（13、23）的上端处于座位的后上方，在第二工作位置下，推杆（13、23）自下而上向前倾斜，推杆（13、23）的上端处于座位的前上方。

Description

幼儿推车
技术领域
本发明涉及一种幼儿推车。
背景技术
现有技术中的幼儿推车，包括可折叠的车架、设置于车架底前部的前轮组件、设置于车架底后部的后轮组件、将车架锁定于展开位置下的锁定机构、设置于车架上的座位。现有的车架的种类繁多，车架的杆件的数目不同，各杆件之间的连接关系、连接位置不同，从而使用方法及功能各不相同。
发明内容
本发明要解决的技术问题是提供一种可换向的幼儿推车。
在解决上述技术问题，本发明提供一种幼儿推车，包括可折叠的车架、设置于车架上的座位、用于将车架在展开时锁定的锁定机构、设置于车架底部的前轮组件和后轮组件，车架包括下部安装前轮组件的前支架、前部与前支架相转动连接后部安装后轮组件的座位杆、推杆、下部与座位杆可转动地连接的后支架、滑动件。推杆包括下部与前支架的上部或座位杆的前部可转动地连接的下推杆、与下推杆可相对滑动地连接的上推杆，当车架展开时，上推杆与下推杆相对锁定，在折叠或打开车架的过程中，上推杆可相对下推杆滑动。滑动件可滑动地设置于上推杆与后支架其中之一上，上推杆与后支架中的另外一个与该滑动件可转动地连接。座位安置于座位杆的上方。车架展开时推杆具有两个工作位置，在第一工作位置下，推杆自下而上向后倾斜，推杆的上端处于座位的后上方，在第二工作位置下，推杆自下而上向前倾斜，推杆的上端处于座位的前上方。此处的前、后根据消费者的一般习惯来定义。车架折叠时，上推杆与下推杆相对滑动，使得整个推杆收缩，以维持车架折叠后的平衡性，使得车架折叠后，前轮和后轮能够在平面上支撑折叠后的车架站立。
在一特定实施例中，前支架、座位杆、推杆、后支架、滑动件分别有一对，一对前支架、一对座位杆、一对推杆、一对后支架以及一对滑动件分别处于相对两侧。每侧的推杆、前支架、座位杆、滑动件、后支架连接在一起构成一侧骨架的主体，两侧的侧骨架之间连接一能够横向折叠使两侧的侧骨架相对靠拢的横撑组件。通过横撑组件的横向折叠使得车架在横向上的可以收拢。本文此处及其它各处的横向是根据本领域技术人员的习惯来定义的，所谓“横向”即指横贯车架左右两侧的方向。
在一具体实例中，横撑组件包括前撑架，前撑架包括相交叉并在交叉处相转动连接的两根前撑杆，两根前撑杆的上端分别与两侧的座位杆相转动连接，两根前撑杆的下端分别与两侧的前支架相转动连接，且两根前撑杆的上端与座位杆相连接的位置位于座位杆与前支架相连接的位置的前方。
优选地，横撑组件包括底撑架，底撑架设置于两侧的座位杆之间。底撑架可以包括由两根相交叉并在交叉处相铰接的杆构成的十字撑架、两根连杆，两根连杆各自有一端分别与十字撑架的两个相邻的端部相转动连接，两根连杆的另一端部分别转动连接于两侧的座位杆，十字撑的另外两个端部分别与两侧的座位杆相转动连接。
优选地，横撑组件包括后撑架，后撑架设置于两侧的后支架之间。后撑架优选包括：
竖杆；
第一横杆和第二横杆，第一横杆与第二横杆分别具有与竖杆的上端部相转动连接的内端，还分别具有与两侧的后支架相转动连接的外端；
滑块，滑块可滑动地设置在竖杆上；
第三横杆和第四横杆，第三横杆和第四横杆分别具有与竖杆的下端部相转动连接的内端，还分别具有与两侧的后支架相转动连接的外端；
第一斜杆，第一斜杆的两端分别部与滑块及第三横杆相转动连接；
第二斜杆，第二斜杆的两端分别与滑块及第四横杆相转动连接。
在一优选实施例中，前轮组件和后轮组件中的轮子的自身转动轴线大致处于同一平面上，滑动件与推杆或后支架相转动连接的位置在该平面上的投影位于前后轮子之间。
优选地，锁定机构包括用于相对锁定下推杆与前支架的第一锁机构。
优选地，锁定机构包括用于相对锁定上推杆和/或后支架与滑动件的第二锁机构。
优选地，锁定机构包括用于将上推杆相对下推杆锁定的第三锁机构。
以上所提到的第一锁机构、第二锁机构、第三锁机构可以三者并存，也可以只有其中一个或几个。
本发明的范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的（但不限于）具有类似功能的技术特征进行互相替换而形成的技术方案等。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：本发明提供了一种新的技术构思的技术方案，前支架、推杆、座位杆与后支架构成连杆机构，通过推杆、后支架的转动及滑动件的滑动，使得车架可被调节到两个工作位置，当车架处于正向状态时，即第一工作位置，推车人处于座位后方，座位上的儿童背对推车人，当车架转换成反向状态时，即第二工作位置，推车人处于座位前方，可以与儿童面对面。折叠时，将锁定机构解锁，将推杆向前支架靠拢，并且将前支架与后支架靠拢，车架折叠后，前轮组件与后轮组件同时着地，折叠后的车架能够自立。
附图说明
附图1为车架处于正向状态的主视图（实施例一）；
附图2为车架处于反向状态的主视图（实施例一）；
附图3为车架处于折叠状态的主视图（实施例一）；
附图4为车架处于正向状态的立体图（实施例一）；
附图5为车架处于反向状态的立体图（实施例一）；
附图6为车架处于折叠状态的立体图（实施例一）；
附图7为车架处于反向状态的主视图（实施例二）；
附图8为车架处于反向状态的立体图（实施例二）；
附图9为车架处于反向状态的立体图（实施例三）；
附图10为车架处于正向状态的立体图（实施例三）；
其中：1、车架；11、第一前支架；12、第一座位杆；13、第一推杆；14、第一后支架；16、第一下推杆；17、第一上推杆；18、第一滑动件；21、第二前支架；22、第二座位杆；23、第二推杆；24、第二后支架；；26、第二下推杆；27、第二上推杆；28、第二滑动件；31、第一轴；32、第三轴；33、第五轴；34、第七轴；41、第二轴；42、第四轴；43、第六轴；44、第八轴；51、第一前轮组件；52、第一后轮组件；61、第二前轮组件；62、第二后轮组件；7、前撑架；8、底撑架；9、后撑架。
具体实施方式
实施例一
如附图1-附图6所示的幼儿推车，包括具有展开位置与折叠位置的能够在前后、上下及左右方向折叠的车架1、设置于车架1上的座位、用于将车架1锁定在展开位置的锁定机构、设置于车架1底前部的第一前轮组件51与第二前轮组件61、设置于车架1底后部的第一后轮组件52与第二后轮组件62。
车架1包括第一前支架11、第二前支架21、第一座位杆12、第二座位杆22、第一推杆13、第二推杆23、第一后支架14、第二后支架24。
第一前轮组件51设置于第一前支架11的下部。
第一座位杆12与第一前支架11绕第一轴31转动地连接，第一后轮组件52设置于第一座位杆12的下部。
第一推杆13上设置有沿其长度方向滑动的第一滑动件18，第一后支架14的上部与第一滑动件18绕第五轴33转动连接。
第一推杆13的下部与第一前支架11的上部绕第三轴32转动连接。
，第一后支架14的下部与第一座位杆12绕第七轴34转动连接。
第二前轮组件61设置于第二前支架21的下部。
第二座位杆22与第二前支架21绕第二轴41转动连接，第二后轮组件62设置于第二座位杆22的下部。
第二推杆23上设置有可沿其长度方向滑动的第二滑动件28，第二后支架24的上部与第二滑动件28绕第六轴43转动连接。
第二推杆23的下部与第二前支架21的上部绕第四轴42转动连接。
，第二后支架24的下部与第二座位杆22绕第八轴44转动连接，
第一前支架11、第一座位杆12、第一推杆13、第一后支架14构成车架1一侧部的第一侧骨架，第二前支架21、第二座位杆22、第二推杆23、第二后支架24构成车架1另一侧部的第二侧骨架，图示的实例中第一侧骨架与第二侧骨架相对称。第一侧骨架和第二侧骨架通过能够横向折叠的横撑组件连接。
车架1处于展开位置下具有正向与反向两个工作位置，当车架1处于正向工作位置下，第一推杆13自下而上向后倾斜，第二推杆23自下而上向后倾斜，当车架1处于反向工作位置下，第一推杆13自下而上向前倾斜，第二推杆23自下而上向前倾斜。
当车架1在正向工作位置与反向工作位置之间转换时，第二侧骨架与第一侧骨架的结构变化相同。
当车架1在正向工作位置与反向工作位置之间转换时，推杆13和23分别绕第三轴32和第四轴42转动，滑动件18和28在推杆上滑动的同时使得后支架14和24上部分别绕第五轴33和第六轴43转动下部分别绕第七轴34和第八周44转动。由此可见，在换向上，各部件的转动围绕的轴有第三轴32、第四轴42、第五轴33、第六轴43、第七轴34、第八轴44，因此，这些轴的轴心线最好相平行。
当然，推杆、前支架、后支架、滑动件中各部件之间的相对转动也可以补围绕轴线转动，可以通过其它方式，如转动关节等来实现转动。
当车架1折叠时，前支架与座位杆之间则会相对转动，第一座位杆12和第二座位杆22分别绕第一轴31和第二轴41转动，这两个轴的轴心线最好也与第三轴32、第四轴42、第五轴33、第六轴43、第七轴34、第八轴44的轴心线相平行。
关于第一推杆13与第二推杆23的结构：
第一推杆13包括下部与第一前支架11的上部绕第三轴32转动连接的第一下推杆16、与第一下推杆16相滑动连接的第一上推杆17，第一滑动件18滑动地设置在第一上推杆17上；第二推杆23包括下部与第二前支架21的上部绕第四轴42转动连接的第二下推杆26、与第二下推杆26相滑动连接的第二上推杆27，第二滑动件28滑动地设置在第二上推杆27上。当车架1由正向工作位置向反向工作位置转换时，主要是第一滑动件18相对第一推杆13向下滑动，第二滑动件28相对第二滑动件28相对第二推杆23向下滑动。在车架1换向的过程中，第一上推杆17与第一下推杆16之间相对位置基本保持不动，第二上推杆27与第二下推杆26之间相对位置也基本保持不动。而当车架1由展开位置向折叠位置转换的过程中，是第一上推杆17相对第一下推杆16向下滑动，第二上推杆27相对第二下推杆26向下滑动。从而车架1在展开位置下，其第一推杆13与第二推杆23的高度较高，供推车人握持较方便，当其折叠后整体高度下降，体积较小，同时使得折叠后的车架易于自立。如图6所示，折叠后的车架可由前轮和后轮支撑而站立在平面上。
锁定机构可包括设置于第一下推杆16的下部与第一前支架11的上部之间和/或第二下推杆16下部与第二前支架21之间的第一锁机构，也可包括设置于第一上推杆17与第一滑动件18和/或第二上推杆27与第二滑动件28之间的第二锁机构，也可以两者都有。锁定机构还可以包括设置于第一上推杆17与第一下推杆16之间和/或第二上推杆27与第二下推杆26之间的第三锁机构。第一锁机构是用来止转的，并且不是本发明的设计要点，只要能够将两个转动的部件之间锁定的结构都可以适用，在此不再赘述。第二锁机构、第三锁机构都是滑动锁定机构，同样不是本发明的设计要点，只要能够将两个滑动的部件之间锁定的结构都可以适用，本领域技术人员所知的这样锁定机构有很多，在此不再赘述。
横撑组件包括前撑架7，前撑架7设置于第一前支架11、第二前支架21、第一座位杆12与第二座位杆22之间，前撑架7是由第一前撑杆与第二前撑杆相交叉并在交叉处相枢轴连接构成的，第一前撑杆的下部与第一前支架11通过第一转动关节能够在两个相交叉的平面方向上转动地设置，第一前撑杆的上部与第二座位杆22通过第三转动关节能够在两个相交的平面方向上转动地设置，并且第三转动关节位于第二轴41的前方；第二前撑杆的下部与第二前支架21通过第二转动关节能够在两个相交的平面方向上转动地设置，第二前撑杆的上部与第一座位杆12通过第四转动关节能够在两个相交的平面方向上转动地设置，并且第四转动关节位于第一轴31的前方。本实施例中，第一转动关节、第二转动关节、第三转动关节与第四转动关节分别是通过两个相互垂直的轴与相邻的部件转动连接。除此之外，该四个转动关节也可以球关节取代。
横撑组件包括底撑架8，底撑架8设置于第一座位杆12与第二座位杆22之间。底撑架8包括一端部与第一座位杆12相枢轴连接的第一底杆、一端部与第二座位杆22相枢轴连接的第二底杆、一端部与第一座位杆12相枢轴连接的第三底杆、一端部与第二座位杆22相枢轴连接的第四底杆，第三底杆与第四底杆相交叉并在交叉处枢轴连接，第三底杆的另一端部与第二底杆的另一端部枢轴连接，第四底杆的另一端部与第一底杆的另一端部枢轴连接。
横撑组件包括后撑架9，后撑架9设置于第一后支架14与第二后支架24之间，后撑架9包括：
竖杆；
第一横杆，第一横杆的一端部与所述竖杆的上端部相枢轴连接，第一横杆的另一端部与第一后支架14相枢轴连接；
第二横杆，第二横杆的一端部与所述竖杆的上端部相枢轴连接，第二横杆的另一端部与第二后支架24相枢轴连接；
滑块，滑块滑动地设置在竖杆上；
第三横杆，第三横杆的一端部与所述竖杆的下端部相枢轴连接，第三横杆的另一端部与第一后支架14相枢轴连接；
第四横杆，第四横杆的一端部与所述竖杆的下端部相枢轴连接，第四横杆的另一端部与第二后支架24相枢轴连接；
第一斜杆，第一斜杆的一端部与滑块相枢轴连接，所述第一斜杆另一端部与所述第三横杆相枢轴连接；
第二斜杆，第二斜杆的一端部与滑块相枢轴连接，第二斜杆另一端部与所述第四横杆相枢轴连接。
实施例二
如附图7、附图8所示，实施例二与实施例一的区别在于：第一推杆13与第二推杆23的结构不同，本实施例中，第一推杆13与第二推杆23分别是单一的杆件，与实施例一相比，车架1处于展开位置下，第一推杆13与第二推杆23最上部所处的高度较低；而当车架处于折叠位置下，其折叠后的体积较大。
实施例三
如附图9、附图10所示，实施例三与实施例一的区别在于：横撑组件的结构不同，实施例一中，横撑组件包括前撑架7、底撑架8与后撑架9，而在实施例三中，横撑组件只包括前撑架7与底撑架8，并且省略后撑架9，前撑架7的结构与实施例一的结构相同，而底撑架8的结构采用的是实施例一中后撑架9的结构。
实施例四
如图11-12所示，该实施例的车架与前述实施例基本相似，实施例四与实施例一、二、三的区别在于，实施例一、二、三是在折叠过程中，左右方向即横向也能够收折的车架，而实施例四是横向不能够收折的车架。因而车架上不需要能够横向折叠的横撑组件。
车架包括：
呈H形、开口向上的U形或T形（图中未示出）的前支架110，前轮组件设置于前支架110的下部，可以是单组前轮组件，也可以有第一前轮组件51和第二前轮组件61，两组分别设置于前支架110下部的左右两侧部；
第一座位杆12和第二座位杆22，座位杆12的上部与第一前支架的上部绕第一轴31转动连接，第二座位杆22的上部与第一前支架的上部绕第二轴41转动连接，第一后轮组件52和第二后轮组件62分别对应地设置于第一座位杆12、第二座位杆22的下部；
呈开口向下的U形的推杆，推杆的处于两相对侧的长臂上分别设置有可沿其长度方向滑动的第一滑动件18和第二滑动件28，推杆的两侧长臂的下部分别与前支架110绕第三轴32及第四轴42转动连接；
第一后支架14，第一后支架14的上部与第一滑动件18绕第五轴33转动连接，第一后支架14的下部与第一座位杆12绕第七轴34转动连接；
第二后支架24，第二后支架24的上部与第二滑动件28绕第六轴43转动地连接，第二后支架24的下部与第二座位杆22绕第八轴转动地连接。
关于推杆的结构，同样的，推杆可以是包括下部与前支架110的上部绕第三轴32转动连接的第一下推杆16和第二下推杆26、与第一下推杆16及第二下推杆26分别相滑动连接的上推杆17，第一滑动件18和第二滑动件28可滑动地设置在上推杆17上。锁定机构包括设置于上推杆17与第一下推杆16和/或第二下推杆26之间的第三锁机构。锁定机构还包括设置于推杆的下部与前支架110的上部之间的第一锁机构、设置于推杆与第一滑动件18和/或第二滑动件28之间的第二锁机构。
作为实施例四的变型，推杆也可以是单根的。第一座位杆12和第二座位杆22也可以是一体式构造，整个呈H形。
如上所述，我们完全按照本发明的宗旨进行了说明，但本发明并非局限于上述实施例和实施方法。相关技术领域的从业者可在本发明的技术思想许可的范围内进行不同的变化及实施。

Claims (11)

1、一种幼儿推车，包括可折叠的车架（1）、设置于所述的车架（1）上的座位、用于将所述的车架（1）在展开时锁定的锁定机构、设置于车架（1）底部的前轮组件（51，61）和后轮组件（52，62），其特征在于：所述的车架（1）包括：
前支架（11，21），所述的前轮组件（51，61）设置于所述的前支架（11，21）的下部；
座位杆（12，22），所述的座位杆（12，22）的前部与前支架（11，21）相转动连接，后轮组件（52，62）设置于座位杆（12，22）的后部，所述座位安置于座位杆（12，22）的上方；
推杆（13，23），所述推杆（13，23）包括下部与前支架（11，21）的上部或座位杆（12，22）的前部可转动地连接的下推杆（16，26）、与下推杆（16，26）可相对滑动地连接的上推杆（17，27），当车架展开时，上推杆（17，27）与下推杆（16，26）相对锁定，在折叠或打开车架的过程中，上推杆（17，27）可相对下推杆（16，26）滑动；
后支架（14，24），所述后支架（14，24）的下部与座位杆（12，22）可转动地连接，
滑动件（18，28），用于连接上推杆（17，27）与后支架（14）的上部，所述滑动件（18，28）可滑动地设置于上推杆（17，27）与后支架（14，24）其中之一上，上推杆（17，27）与后支架（14，24）中的另外一个与该滑动件（18，28）可转动地连接；
所述的车架（1）展开时推杆（13，23）具有两个工作位置，在第一工作位置下，推杆（13，23）自下而上向后倾斜，推杆（13，23）的上端处于座位的后上方，在第二工作位置下，推杆（13，23）自下而上向前倾斜，推杆（13，23）的上端处于座位的前上方；所述车架（1）折叠后，前轮和后轮能够在平面上支撑折叠后的车架站立。
2、根据权利要求1所述的幼儿推车，其特征在于：前支架（11，21）、座位杆（12，22）、推杆（13，23）、后支架（14，24）、滑动件（18，28）分别有一对，一对前支架（11，21）、一对座位杆（12，22）、一对推杆（13，23）、一对后支架（14，24）以及一对滑动件（18，28）分别处于相对两侧，每侧的推杆（13，23）、前支架（11，21）、座位杆（12，22）、后支架（14，24）以及滑动件（18，28）连接在一起构成一侧骨架的主体，两侧的侧骨架之间连接一能够横向折叠使两侧的侧骨架相对靠拢的横撑组件。
3、根据权利要求2所述的幼儿推车，其特征在于：横撑组件包括前撑架（7），所述的前撑架（7）包括相交叉并在交叉处相转动连接的两根前撑杆，两根前撑杆的上端分别与两侧的座位杆（12，22）相转动连接，两根前撑杆的下端分别与两侧的前支架（11，21）相转动连接，且两根前撑杆的上端与座位杆（12，22）相连接的位置位于座位杆（12，22）与前支架（11，21）相连接的位置的前方。
4、根据权利要求2或3所述的幼儿推车，其特征在于：横撑组件包括底撑架（8），所述的底撑架（8）设置于两侧的座位杆（12，22）之间。
5、根据权利要求4所述的幼儿推车，其特征在于：所述的底撑架（8）包括由两根相交叉并在交叉处相铰接的杆构成的十字撑架、两根连杆，两根连杆各自有一端分别与十字撑架的两个相邻的端部相转动连接，两根连杆的另一端部分别转动连接于两侧的座位杆（12，22），十字撑的另外两个端部分别与两侧的座位杆（12，22）相转动连接。
6、根据权利要求2或3所述的幼儿推车，其特征在于：横撑组件包括后撑架（9），所述的后撑架（9）设置于两侧的后支架（14，24）之间.
7、根据权利要求6所述的幼儿推车，其特征在于：后撑架（9）包括：
竖杆（95）；
第一横杆（91）和第二横杆（92），所述的第一横杆（91）与第二横杆（92）分别具有与所述竖杆（95）的上端部相转动连接的内端，所述的第一横杆（91）与第二横杆（92）还分别具有分别与两侧的后支架（14，24）相转动连接的外端；
滑块（96），所述的滑块（96）可滑动地设置在所述的竖杆（95）上；
第三横杆（93）和第四横杆（94），所述的第三横杆（93）和第四横杆（94）分别具有与所述竖杆（95）的下端部相转动连接的内端，第三横杆（93）和第四横杆（94）还分别具有与两侧的后支架（14，24）相转动连接的外端；
第一斜杆（97），所述的第一斜杆（97）的两端分别部与滑块（96）及第三横杆（93）相枢轴连接；
第二斜杆（98），所述的第二斜杆（98）的两端分别与滑块（96）及第四横杆（94）相枢轴连接。
8、根据权利要求1或2所述的幼儿推车，其特征在于：前轮组件（51，61）和后轮组件（52，62）中的轮子的自身转动轴线大致处于同一平面上，滑动件（18，28）与推杆（13，23）或后支架（14，24）相转动连接的位置在该平面上的投影位于前后轮子之间。
9、根据权利要求1-3中任一项所述的幼儿推车，其特征在于：锁定机构包括用于相对锁定下推杆（16）与前支架（11，21）的第一锁机构。
10、根据权利要求1-3中任一项所述的幼儿推车，其特征在于：锁定机构包括用于相对锁定滑动件（18，28）与上推杆（17，27）和/或后支架（14，24）的第二锁机构。
11、根据权利要求1-3中任一项所述的幼儿推车，其特征在于：锁定机构包括用于将上推杆（17，27）相对下推杆（16，26）锁定的第三锁机构。
PCT/CN2013/079337 2012-10-31 2013-07-13 幼儿推车 WO2014067295A1 (zh)

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